in fact, we first met carlos and his mom maribel two years ago. >> during that trial he became more friendly. >> i was more calm with me on the medication. overall it definitely did have a nice, positive effect on me. >> do you think of yourself as a cannabis researcher? >> there are also the labs at the center for medicinal cannabis research in california we showed you earlier. >> ready? >> answers from there are also slowly arriving. >> we are seeing pretty impressive changes. >> when you say seeing impressive changes, what do you mean? >> children whose aggressive behavior was daily and has gone away. i mean, gone away. a lot of the kids are more social. >> what have we got? >> a banana kiss. >> what is the purple one? >> he is easier to redirect.